IIR document
Inner waves characteristics in a stratified ventilated environment (the effect of momentum jet).
Number: pap. n. 11.6
Author(s) : AWAD A. S.
Summary
An experimental work was carried out to investigate the effect of inner waves on the stability of flow characteristics in ventilated space. Theoretical and experimental techniques were presented. Energy dissipation by waves and its effect on the performance of ventilation was considered. Analysis of engineering systems in the bases of the internal waves and thermal concept was considered to find out the best ventilation process. The mixing process was investigated experimentally using a turbulent round jet impinged from above on the inner wave’s zone. It was carried out at a flow Reynolds number of 7,000< Re <30,000 and a flow Richardson number of 0< Ri< 200 based on the local jet scales. In the mixing process a hot and cold air are introduced to a confined space, to mix through out the ventilated space, and to break down the waves. The results showed that the amount of momentum needed is depending on the wave’s amplitude, frequency and flow conditions. It can be seen that the jet momentum has significant influence on the breaking down of the inner waves and mixing the flow.
Available documents
Format PDF
Pages: 12 p.
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Inner waves characteristics in a stratified ventilated environment (the effect of momentum jet).
- Record ID : 30006165
- Languages: English
- Source: 4th Jordanian IIR International Conference on Refrigeration and Air Conditioning. Proceedings: Amman, Jordan, September 10-12, 2012.
- Publication date: 2012/09/10
Links
See other articles from the proceedings (28)
See the conference proceedings
Indexing
- Themes: Comfort air conditioning
- Keywords: Jet; Momentum; Ventilation; Performance; Expérimentation; Thermal comfort; Air conditioning
-
Experimental investigation of thermal comfort w...
- Author(s) : NASTASE I.
- Date : 2011/03
- Languages : English
- Source: Scientific Journal of the Technical University of Civil Engineering Bucharest, Mathematical Modelling in civil Engineering - vol. 7 - n. 1-2
View record
-
Analysis of a low Reynolds jet flow from a notc...
- Author(s) : GREFFET R., MESLEM A., NASTASE I.
- Date : 2013/06/16
- Languages : English
- Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
- Formats : PDF
View record
-
Numerical study of momentum and heat transfer i...
- Author(s) : MARZOUK S., MHIRI H., GOLLI S. el, et al.
- Date : 2003/10
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 46 - n. 22
View record
-
Effects of discontinuous contact with the floor...
- Author(s) : SHINOHARA M., YOKOYAMA T., KUBO H., et al.
- Date : 2013/06/16
- Languages : English
- Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
- Formats : PDF
View record
-
CFD simulation of air flow regimes and thermal ...
- Author(s) : KHALIL E. E., BIALY E. M.
- Date : 2013/06/16
- Languages : English
- Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
- Formats : PDF
View record